The Saints

The sins of the flesh are bad, but they are the least bad of all sins.  All the worst pleasures are purely spiritual: the pleasure of putting other people in the wrong, of bossing and patronizing;… the pleasures of power, of hatred.  For there are two things inside me, competing with the human self which I must try to become.  They are the Animal self, and the Diabolical self.  The Diabolical self is the worse of the two.  That is why a cold, self-righteous prig who goes regularly to church may be far nearer to hell than a prostitute.

-C.S. Lewis